Question

Given that x+y=9 and x-y =3. Find that value of xy

Answer 1

Answer:

18

Step-by-step explanation:

'.' x + y = 9

  x - y = 3

.'. x + y = 9

   x - y = 3

   2x    = 12

=> x = 6.

x + y = 9

=> 6 + y = 9

=> y = 3.

.'. xy = 6*3

        = 18.

Answer 2

Step-by-step explanation:

so here is your answer 18